What movies do they show at IMAX onboard?

[popeyesChickenSandwich]

I am going to be on Vista next week 10th - 17th.
I've never been on a ship with the onboard IMAX, and I'm wondering if they publish the showtimes before getting on-board. If they are only available on the ship, how far in advance do they put showtimes out?
 

The new Avatar comes out on the 16th, and I'm wondering if there's any possibility it will be available on the ship and if so, how aggressively will I have to try to get tickets - is there a smart strategy?

[1025cruise]

Unfortunately, they aren't allowed to advertise the movies ahead of time. My guess is that Avatar won't be available on your cruise, but probably will on the following one.